Refrigerating apparatus



Oct. 27, 1931. N 1,829,412

REFRIGERATING APPARATUS Filed May 30, 1929 INVENTOR ATTORNEYS Patented Oct. 27, 1 931 I UNITED STATES PATENT OFFICE JESSE G; KING, OF DAYTON, OHIO, ASSIGNOB TO FBIGIDABE CORPORATION, OF DAYTON, 0310, A. OORPORATION OF DELAWARE BEFBIGERATING' APPARATUS Application filed May 30,

frigerant supply unit.

One of the objects of the invention is to conveniently locate and support the receiver so that it may be easily removed or replaced without disconnecting the refrigerant lines.

Another object is to conveniently support a switch so that it may be easily adjusted or removed if necessary.

Further objects and advantages of the present invention will be apparent from the '15 following description, reference being had to the accompanying drawings, wherein a preferred form of the invention 1s clearly shown.

In the drawings:

Fig. 1 is a top View of a preferred arrangement of a refrigeration liquefymg unit;

Fig. 2 is an end view of the apparatus of Fi 1- Fight is a top view of one of the receivler ports separated from its supporting bracket;

and

Fig. 4 is a side view of Fig. 3 with part of the bracket broken away to show the depressed part of the slot. I

In the arrangement of apparatus manufactured in large quantities there is not only 7 the problem of placing the elements in their best position of operation but also the problem of assembling the essential parts with as few additional elements as possible. Where large quantities of a particular form of apparatus are assembled even one or two unnecessary parts means a big savlng over a period of time. Furthermore the more quickly the apparatus is assembled the more saving there is in labor cost. Accordingly 1t is one of the objects of this invention to have refrigerating apparatus that may be easily and quickly assembled, and also one in which there are certain parts thereof that may be disassembled. without shutting off the re frigerant lines.

In Fig. 1 there is disclosed the preferred form of arran ement of a refrigerant liquefying unit, platform 10 is resiliently 1929. Serial No. 367,165.

mounted upon the rubber rollers 11. A compressor 12 receives the evaporated refrigerant in its crankcase and after compressing it discharges the compressed gas through the conduit 13 to the condenser 14:. From the condenser 14 the new liquefied refrigerant passes through a conduit 15 to the inlet port 16 of the receiver 17. This inlet port is more particularly described later on. From the receiver the refrigerant passes up through the upper port 18 and conduit 19 to a cooling unit of any shape or form. It is preferred, however, to use a flooded fioat controlled type ofeva orator such as disclosed in the patent to R. Osborn 1,556,708 issued Oct. 13, 1925. From such a cooling unit the evaporated refrigerant returns to the crankcase of the compressor 12 thru the conduit 17. The compressor is run by the motor 20 having the motor pulley 21 connected by the belt 22 to the compressor pulley 23. A fan 24 is preferably located on the motor pulley shaft 25. Likewise fan blades may be located on the compressor pulley between the center and periphery thereof for cooling the condenser and the casings of the other apparatus. It will be noted that the condenser is conveniently located between} the compressor and the fan blades of the compressor pulley. An automatic pressure responsive switch 26 is connected by the electrical connection 27 to the power mains connected to the motor 20. This switch is referably of the type disclosed in the copend ing application of Otto M. Summers, S. N. 281,599, filed May 29, 1928 and is connected in the system as disclosed in that application. As the system is a closed one the pressure of the gas in the return conduit 47 is directly related to the temperature of the cooling unit. The switch hasthe control means 28 by which'the pressure and hence the temperature at which the switch will operate may be manually set according to the desires of the person utilizing the apparatus.

A preferred arrangement of the receiver and switch is disclosed in the drawings. The receiver is spaced from the platform and preferably located slightly to one side of it. This receiver is supported in this spaced position-by means of one or more. brackets.

, ile. one long bracket could be used it is preferable to use two brackets 29 and'30.

These brackets have one .end 31 attachedpreferably by welding to the underside of the platform and having an off set portion 32 subs'tantially'parallel to the-plane of the platform at a shdrt distance above it. This portion 32 is slotted at 33 and at the center said receiver, said-means adapted to be inof the slot has a depressed portion 34. The tank 17 has the two ports previously mentioned for the inlet and outlet of the refrigerant. These ports in their preferred form comprise an integral upstanding boss 35 with.

screw threads on its outer periphery surface. Two Washers 36 are placed upon this port and then a nut 37. This port'can' then be attached to the bracket by.inserting the boss in the slots 33 with the washers above and below 0 the depressed portion 34. The nut 37 is then ,A continuation of the shank 38 base shut off valve located therein whichcan be 1 disconnecting thc conduits from therest' of screwed down into locked engagement. 1 By this meansthe receiver is supported by its ports and no additional supporting elementsare necessary. Each of these ports has pref- 25 erably a valve between it and the conduitto which it is connected. The gas in such a valve passes up a shortshank 38 and makes a right angle bend through the elbow 39.

reached in the apparatus disclosed by removing the cap 41.. The receiver can -be assembled or disassembled from thebracket without shutting the refrigerant lines and the refrigerant apparatus. All that is necessary ist'o; unscrew the nut 37 and to pull'the receiver out of the slots 33. Asthereceiver is located in the frontof the apparatus when it is placed in the machine compartment of the scope of the claims which follow.

What is claimed is as follows:

1. In combination, a platform adapted to I support a refrigerant liquefying unit, a re-.

ceiver s aced from said platform, a plurality of brac ets attached to said platform, said outlet'means for the liquefied refrigerant on sertedain said slots andto thereby support said receiver in said spaced relation. 2. A receiver for refrigerant comprising a tank, an inlet and outlet means on said tank, said means being screw-threaded, fastening- .means on said means and a bracket to which the inlet'an'd outlet means are adapted to be -removably secured. I

. 3. Incombination, a latform for supportin a portion of a re igerating system, a brac et attached to said platform, a re- 4. In combination, a support, a bracket at- "tached to the support, a tank member having inlet and outlet pipe connections, and a pair of nuts threaded upon one of said connections V for fastening the tank member to the bracket.

nature.

In testimony whereof I hereto affix my si'g- JESSE G. KING.

brackets being slotted, an inlet means and an v the refrigerating cabinet'it is very convenient to locate the automatic switch 26 Yu on these brackets also. For this purpose ho cs 42 are drilled in the bracket and the switch is mount ed on the bracket by the bolts 43. As the switch uses two holes in the left hand bracket and one in the righthand bracket of Fig. 1

each bracket is punched with two holes on its. right hand side and one hole on its left hand side so that the brackets may be interchangeable in either of the-two positions. This switch 26 may likewise be removed from the I supporting bracket withofut disconnecting the.

electrical connection 27 to the motorv 20.

Accordinglyther'ehas been disclosed avery convenient and economical method of suprting the receiver "and'automatic-switgh rom the platform of a refrigerant liquefying'g unit. This method of support not only adds 1 .to the convenience in assembling and-disassembling the'apparatus b" likewise results in fewer fastening means While the form of em u 1me'nt of the in.

vention as herein disclosedeonstitutes-.apre-' .05 ferred form, it i's-to be understood 

